31results about How to "Less prone to pollution" patented technology

Disclosed is a method for inspecting a magnetic recording medium, in which the adhesion (transfer) of contaminants or corrosive materials to a magnetic head can be prevented. Specifically disclosed is a method for inspecting a magnetic recording medium comprising a non-magnetic substrate and additionally comprising at least a magnetic layer, a protective layer and a lubricant layer all provided on the non-magnetic substrate. The method is characterized by comprising exposing the magnetic recording medium to an atmosphere containing a siloxane and determining the resistance of the magnetic recording medium against environmental substances based on the amount of the siloxane attached to the surface of the magnetic recording medium.

The invention relates to a preparation method of a high-efficiency compound microorganism soybean meal leaven, belonging to the technical field of biological enzymolysis and fermentation. The preparation method comprises the following steps of: respectively carrying out optimal screening on lactobacillus acidophilus, lactobacillus lactis, saccharomyces cerevisiae, Candida utilis, bacillus subtilis and bacillus licheniformis; mixing and culturing by shaking a bottle; culturing by using a 10L fermentation tank; manufacturing a microorganism compound protective agent; spray drying in low temperature; preparing the soybean meal leaven and the like. The high-efficiency compound microorganism soybean meal leaven can efficiently inhibit the growth of mixed bacterium and eliminate or remarkably lower anti-nutritional factors and flatulent factors in soybean meal, enhance the protein utilization ratio and strengthen the immunity and has the excellent characteristics of acid resistance, salt resistance, temperature resistance and bile resistance. The invention has the advantages of simple preparation method, low cost, stable and reliable produced product quality and wide application range.

The purpose of the present invention is to provide: a photosensitive composition which has excellent photosensitivity, resolution, heat resistance and moisture absorption resistance, while being insusceptible to contamination in high temperature environments, and which is suitable as a material for permanent films; and the like. The present invention provides a photosensitive composition for permanent films, which contains a hydroxynaphthalene novolac resin having a structural moiety (I) represented by general formula (1) as a repeating unit and containing a hydroxynaphthalene (A) represented by general formula (2) in an amount of 2% by mass or less in terms of resin solid content, and which does not contain a curing agent, or contains a curing agent in an amount of 50 parts by mass or less per 100 parts by mass of the above-described resin. (In the formulae, R1 represents a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an aralkyl group or a halogen atom, and a plurality of R1 moieties may be the same as or different from each other; R2 represents a hydrogen atom, an alkyl group or an aryl group; and p represents 1 or 2, and q represents 4 or 5, with the sum of p and q being 6).

The invention relates to a biochemical treatment method and device for landfill leachate. The method specifically includes: firstly, the pretreated landfill leachate is put into an anaerobic biological filter for treatment, and then undergoes first-level facultative biochemical treatment, anoxic reaction After nitrification treatment and secondary aerobic biochemical treatment, the water is finally discharged through the ceramic membrane module for the subsequent advanced treatment process. The present invention has a good treatment effect, adopts anaerobic-facultative oxygen-anoxic-aerobic microbial environment to form different microbial flora, effectively improves the effect of biochemical treatment of landfill leachate, and reduces the pressure of subsequent advanced treatment. It reduces the investment and operating costs of the overall process; at the same time, it can be combined with adsorption process or reverse osmosis technology to ensure the discharge of landfill leachate up to the standard.

The invention discloses an apparatus for preparing an ion probe indium target and a preparation method of the ion probe indium target. The apparatus includes a target support, a heating mechanism for heating the target support, a pressure rod, a sliding rod, an air cylinder, a first support frame for supporting the air cylinder, a second support frame for supporting the pressure rod and a third support frame for supporting the sliding rod. One end of the pressure rod is movably connected to the top of the second support frame while the other end is connected to the air cylinder. The sliding rod and the heating mechanism are both arranged below the pressure rod. One end of the sliding rod faces to the pressure rod while the other end faces to the heating mechanism. The air cylinder applies pressure onto the pressure rod longitudinally, thereby driving the sliding rod to apply a pressure onto the heating mechanism longitudinally. The apparatus can increase the micron resolution ratio from more than 5 [mu]m to less than 1 [mu]m, thereby achieving measurement on age and microelements of a narrow metamorphic edge (less than 5 [mu]m) of low-grade metamorphic zircon. The surface flatness of prepared indium target is less than 10 [mu]m and the indium target can satisfy a requirement on flatness during ion probe detection.

The invention provides a large-size sapphire boat transfer device, which comprises an assembly platform, a piece push mechanism and a boat loading protection mechanism, wherein the assembly platform is provided with a boat positioning mechanism and a wafer support mechanism; the piece push mechanism comprises a slide bar, a slide block, a handle, a push rod and a piece push bracket; the boat loading protection device comprises a positioning lever, a lever groove, a connecting rod, a connecting rod through hole, a movable button, a movable button spring and a movable button groove. By the wafer transfer device provided by the invention, the risks of human contact, man-made pollution, drop breakage and the like caused in the wafer transfer process can be effectively reduced. A wafer is transferred in a manner of point contact of an insulating material and the wafer all the way when transferred, and the contact of a human body and the wafer is completely avoided, so that the man-made pollution is avoided from the source.

The invention relates to the field of production technology of a vegetable protein beverage, and aims to provide a production technology of red date and rose soymilk for women. The production technology mainly comprises the following steps of: (1) soybean screening; (2) soaking; (3) washing; (4) soymilk grinding; (5) soymilk boiling; (6) filtering; (7) syrup preparation; (8) mixing; (9) homogenizing; (10) sterilizing; (11) sterile filling and the like. Through the production technology provided by the invention, the obtained soymilk has high content of nutritional ingredients, full and smoothmouthfeel and low energy consumption; and moreover, the product quality is easy to control, and the production process is safe and reliable.

The invention relates to a luminous warning road reflective paint and a construction method thereof. The coating is composed of a primer and a topcoat; by weight percentage, the A component of the primer includes: two-component room temperature curing acrylic resin, luminous powder, leveling agent, wetting and dispersing agent, the first defoamer, catalyst Drying agent, toner, reactive diluent, primer B component includes: initiator, reactive diluent; topcoat A component includes: two-component room temperature curing fluorocarbon resin, glass beads, anti-settling agent, second 2. Defoamer, drier, solvent; topcoat component B includes: curing agent, thinner. The coating formed by the coating of the present invention has a good surface state, is not easily polluted, has good reflection effect, strong adhesion, and the marking line is not easily deformed, and has good stability at the same time, which is beneficial to reducing the later maintenance cost.

The invention provides a method for treating heavy metal wastewater by virtue of a conducting film. The method comprises the following specific steps: 1, pumping heavy metal wastewater entering from a wastewater inlet (1) to a pre-treatment device (3) through a pump (2) to remove particles in wastewater; 2, introducing the wastewater without particles to a pH adjusting pool (4) to adjust the pH value of the wastewater to 4-6.5; and 3, pumping the wastewater with adjusted pH value to a film pond (9) through a valve (5), a flowmeter (6) and a pressure gauge (7) by means of a pump (2'), wherein heavy metal ions can not penetrate through a conducting film to form heavy metal concentrated liquor due to the positive electricity rejection effect between the conducting film as an anode in the film pool (9) and the heavy metal ions in the wastewater, while water in the wastewater penetrates through the conducting film to form a penetrating fluid. The heavy metal concentrated liquor flows back to the adjusting pool (4) through a pressure gauge (7') and a valve (5') while the penetrating fluid is discharged through a penetrating fluid outlet (8).

The invention belongs to a construction technology welding method for building engineering. In particular, it refers to the welding installation of bimetal composite steel pipes (SFG) in stations or long-distance pipeline projects, which includes the following steps: pipe groove processing, base pipe and liner gap girth welding, stainless steel liner butt weld welding, Dissimilar steel butt joint welding, intermediate layer weld seam filling welding, surface layer weld seam cover welding, bimetallic composite steel pipe solves the problem of oil field sewage transportation well, has strong applicability and high technological advancement, While fully meeting the requirements of oilfield sewage transportation, it can effectively reduce the user's operating costs, minimize safety hazards, and has a very broad application prospect.

The invention discloses an electrode lead protection device, which includes a clamping part and a surrounding part, the clamping part is solid, the clamping part is provided with a first limiting structure, and the surrounding part is extended from the clamping part Formed, the enclosing portion includes an accommodating cavity with an opening, and the enclosing portion is provided with a second limiting structure. The present invention designs a solid clamping part and the stopper on it to provide a clamping site for surgical auxiliary tools, and designs a hollow surrounding part to accommodate electrode wires, and at the same time designs a limiting structure in the surrounding part for surgical binding, thus protecting The electrode lead will not be damaged due to direct contact with auxiliary tools or surgical wires, and at the same time, the electrode lead connection end is protected from contamination when it passes through various subcutaneous channels or is implanted under the skin.

The invention belongs to the field of microbes, and particularly relates to a method for continuously culturing bacillus subtilis and a special fermenting system. The method provided by the invention comprises the following steps: (1) transferring stored bacillus subtilis strain to a test tube agarslantculture-medium, performing strain activation, and then, transferring the strain into a triangular flask and a seeding tank for culturing in sequence to prepare a bacillus subtilis seed; (2) taking culture materials including starch, corn powder, soya bean meal, peptone, NaCl, CaCl2, MgSO4.7H2O, KH2PO4, K2HPO4, MnSO4, a defoaming agent and water; (3) after the culture materials in the step (2) are subjected to sterilizing treatment, inoculating the activated and cultured bacillus subtilis seed, and performing three-stage continuous culturing to obtain a fermenting liquid. The bacillus subtilis cultured with the method provided by the invention is stable and uniform in quality; neither mixed fungi pollution nor strain mutation is easily caused; the service life of various detectors is prolonged; the time is reduced; the yield and the production efficiency are improved; the concentration and the spore rate of thalli of the bacillus subtilis are improved.